Nike Men’s Air Diamond Trainer White/Black Training Shoe Nike’s Mens Air Diamond baseball trainers are ideal coaches’ shoes, and that’s not all. These versatile baseball training shoes can be used for just about anything. The Air Diamond trainers are great for wearing into the batting cage, using for outfield conditioning or wearing on turf fields. You’ll always have a comfortable fit, thanks to the Air Diamond baseball trainer’s lightweight synthetic leather construction. The baseball shoe also has a full-length Nike Phylon midsole with Air-Sole units in the heels. The outside is an aggressive rubber that utilizes a nubby design preferred by our pro-level baseball players. Coaches: Contact a Team Sales representative toll free at 1-877.697.7678 for Team Pricing and Package Deals. Color: White/Black. Sizes: 4 – 13, 14, 15.